Improvement in condensing steam and feeding steam-boilers



UNTTED STATES PATENT Tricia.

JOSEPH I. PIBSSON, JR., OF NEV YORK, N. Y.

Specification forminghpart of Letters Patent No. llvfdated Fcbruary10,1846.

T 0 all whom, may concern.-

Be it known that I, J osErH I). PIRssoN, Jr., of the city, county, andState of New York, have invented a new and Improved Condensing Apparatusfor Steam Machinery and for Supplying Steam-Boilers with Fresh XVater;and I do hereby declare that the following is a full and exactdescription.

The nature of my invention consists in arefrigerating apparatus attachedto the cylinder of the steam-engine, wherein the water for condensationand the condensed steam are so distributed that a constant supply offresh water is returned to the boilers, and also of cold water for t-hecondensation of its steam.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

Beneath or near to the ordinary cylinder of the steam-engine, Iconstruct a hollow chamber of iron, (of which c, Figure l, is a sectional view, showing the interior, (into which the steam forcondensation is to be exhausted. From the bottom of the chamber anopening, b, is made, for carrying off the condensed steam and water.

(Z is an air-pump communicating with the condensing-chamber by thechannel c c. From the top of the pump two pipes receive the water itdischarges, of which c e is the feedpipe for supplying the boiler, whilef empties the surplus into the reservoir g, which stands on the top ofthe large tank h h. h h, containing the refrigerator. From the reservoirg a pipe, t', is fixed, to communicate with the receiving-hood k,covering the mouths of the metal pipes.

L Z m is the cooling apparatus, composed of a number of metal pipes.rlhese pipes are arranged by inserting them into plates of metal,havinga sufficient number of holes perforated to receive the ends of thepipes, as shown in a a a, Fig. 3, the pipes t0 be water-tight, and

Iinserted into the perforated plates in like manner. The hoods k m areboxes of metal,

water-tight, and bolted to the perforated plates a c a, Fig. 3, n n a,Fig. l, so that the whole cluster of pipes will receive and dischargeinto them, the water being received into 7c and discharged through thepipes into the hood m.

O is a pipe, attached to the hood m, running to the condensing-chambera, into which it terminates with an open nozzle at p, and is thejet-pipe for condensation.

In order to set my machine in-operation, I commence by filling myboilers with freshwater until they have received the quantity usuallygiven. I then ll, also, the cooling apparatus k Z m with fresh waterfrom the reservoir g, which is likewise to bekept filled. Astream ofcold water is now turned into the watertight tank ZZ h h, h through lr,flowing over the pipes 7c Z m, and discharging at s, but so that thepipes shall be always completely submerged. Should this machine beapplied to the engines for propelling boats, the water to supply thetank can be taken through the bottom or sides of the boat, or by troughsplaced under the guards behindl the paddle-wheels to catch theliftwater, and so led into the tank. Steam being now raised, the engineis worked vin the usual manner. rlhe steam is exhausted from thecylinder by the pipe t into the condenser a. A jet of cold water beingopened on it from the pipe o, it is condensed and falls to the bottom ofthe condenser, from whence the whole is removed by the pump cZ throughthe channel c c and discharged into the reservoir g. The water in thereservoir g, having becom'ehighl y raritied,is rendered unt forcondensation if returned immediately to the condenser. Therefore itdischarges itself through the pipe t' into the receiving-hoodk, andflowingthrough the pipes immersed in cold water, it arrives at mproperly cooled for condensation. At each stroke of the engine a certainquantity of 'water for the reproduction of steam must be returned to theboiler. This is done by the feed-pipe e e, attached to the reservoir onthe top of the pump, taking its supply from the water in its rarifiedstate. In marine engines this apparatus will prevent the necessity ofblowing-off 7 from the boilers, in order to prevent the depositof saltfrom the evaporation of sea-water, and also the formation of scale, soinjurious to iron boilers, and in river-boats it will keep the boilersfree from the deposit of mud and other impurities.

Figure l is a sectional view, showing the entire apparatus connected andin operation. Fig. 2 is a ground plan, with a top view of the air-pump,reservoir, tanks, and pipes. Fig. 3 is a perspective view of the clusterof pipes, the receiving-hood l.' being removed to show the manner ofarranging them in the plates a a c.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

rl`he refrigerator, as herein described, in combination with any of theknown jet-c0ndens ers, the said refrigerator receiving that portion ofthe Water from the condenser which is not immediately returned to theboiler, cooling the same sufficiently for use in condensing, andreturning it to the jet for the condensation of the steam from thecylinder, the Whole being combined and operating substantially as hereinset forth. f

The operation of this machine may be varied in the cooling part bypassing the cold Water through the pipes lc Z fm, and discharging theWater taken from the condenser, which is to be cooled, into the tank h h71, h, changing the injection and eduction pipes to suit the alteration,the result produced being the same.

JOSEPI l). PIRSSON, JR.

Vitnesses: l

JOHN XV. PIRssoN, TALBOT PIRssoN.

